mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-11-01 17:08:10 +00:00
df4bf98ec2
Some warnings do not increment the warnings counter making the behavior
of running kernel-doc with -Werror unlogical as some warnings will be
generated but not treated as errors.
Fix this by creating a helper function that always incrementing the
warnings counter every time a warning is emitted. There is one location
in get_sphinx_version() where a warning is not touched as it concerns
the execution environment of the kernel-doc and not the documentation
being processed.
Incrementing the counter only have effect when running kernel-doc in
either verbose mode (-v or environment variable KBUILD_VERBOSE) or when
treating warnings as errors (-Werror or environment variable
KDOC_WERROR). In both cases the number of warnings printed is printed to
stderr and for the later the exit code of kernel-doc is non-zero if
warnings where encountered.
Simple test case to demo one of the warnings,
$ cat test.c
/**
* foo() - Description
*/
int bar();
# Without this change
$ ./scripts/kernel-doc -Werror -none test.c
test.c:4: warning: expecting prototype for foo(). Prototype was for
bar() instead
# With this change
$ ./scripts/kernel-doc -Werror -none test.c
test.c:4: warning: expecting prototype for foo(). Prototype was for
bar() instead
1 warnings as Errors
Signed-off-by: Niklas Söderlund <niklas.soderlund@corigine.com>
Link: https://lore.kernel.org/r/20220613090510.3088294-1-niklas.soderlund@corigine.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2491 lines
66 KiB
Perl
Executable file
2491 lines
66 KiB
Perl
Executable file
#!/usr/bin/env perl
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# SPDX-License-Identifier: GPL-2.0
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use warnings;
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use strict;
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## Copyright (c) 1998 Michael Zucchi, All Rights Reserved ##
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## Copyright (C) 2000, 1 Tim Waugh <twaugh@redhat.com> ##
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## Copyright (C) 2001 Simon Huggins ##
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## Copyright (C) 2005-2012 Randy Dunlap ##
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## Copyright (C) 2012 Dan Luedtke ##
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## ##
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## #define enhancements by Armin Kuster <akuster@mvista.com> ##
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## Copyright (c) 2000 MontaVista Software, Inc. ##
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#
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# Copyright (C) 2022 Tomasz Warniełło (POD)
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use Pod::Usage qw/pod2usage/;
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=head1 NAME
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kernel-doc - Print formatted kernel documentation to stdout
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=head1 SYNOPSIS
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kernel-doc [-h] [-v] [-Werror]
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[ -man |
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-rst [-sphinx-version VERSION] [-enable-lineno] |
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-none
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]
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[
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-export |
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-internal |
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[-function NAME] ... |
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[-nosymbol NAME] ...
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]
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[-no-doc-sections]
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[-export-file FILE] ...
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FILE ...
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Run `kernel-doc -h` for details.
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=head1 DESCRIPTION
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Read C language source or header FILEs, extract embedded documentation comments,
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and print formatted documentation to standard output.
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The documentation comments are identified by the "/**" opening comment mark.
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See Documentation/doc-guide/kernel-doc.rst for the documentation comment syntax.
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=cut
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# more perldoc at the end of the file
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## init lots of data
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my $errors = 0;
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my $warnings = 0;
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my $anon_struct_union = 0;
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# match expressions used to find embedded type information
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my $type_constant = '\b``([^\`]+)``\b';
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my $type_constant2 = '\%([-_\w]+)';
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my $type_func = '(\w+)\(\)';
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my $type_param = '\@(\w*((\.\w+)|(->\w+))*(\.\.\.)?)';
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my $type_param_ref = '([\!]?)\@(\w*((\.\w+)|(->\w+))*(\.\.\.)?)';
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my $type_fp_param = '\@(\w+)\(\)'; # Special RST handling for func ptr params
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my $type_fp_param2 = '\@(\w+->\S+)\(\)'; # Special RST handling for structs with func ptr params
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my $type_env = '(\$\w+)';
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my $type_enum = '\&(enum\s*([_\w]+))';
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my $type_struct = '\&(struct\s*([_\w]+))';
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my $type_typedef = '\&(typedef\s*([_\w]+))';
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my $type_union = '\&(union\s*([_\w]+))';
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my $type_member = '\&([_\w]+)(\.|->)([_\w]+)';
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my $type_fallback = '\&([_\w]+)';
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my $type_member_func = $type_member . '\(\)';
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# Output conversion substitutions.
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# One for each output format
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# these are pretty rough
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my @highlights_man = (
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[$type_constant, "\$1"],
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[$type_constant2, "\$1"],
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[$type_func, "\\\\fB\$1\\\\fP"],
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[$type_enum, "\\\\fI\$1\\\\fP"],
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[$type_struct, "\\\\fI\$1\\\\fP"],
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[$type_typedef, "\\\\fI\$1\\\\fP"],
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[$type_union, "\\\\fI\$1\\\\fP"],
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[$type_param, "\\\\fI\$1\\\\fP"],
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[$type_param_ref, "\\\\fI\$1\$2\\\\fP"],
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[$type_member, "\\\\fI\$1\$2\$3\\\\fP"],
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[$type_fallback, "\\\\fI\$1\\\\fP"]
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);
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my $blankline_man = "";
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# rst-mode
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my @highlights_rst = (
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[$type_constant, "``\$1``"],
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[$type_constant2, "``\$1``"],
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# Note: need to escape () to avoid func matching later
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[$type_member_func, "\\:c\\:type\\:`\$1\$2\$3\\\\(\\\\) <\$1>`"],
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[$type_member, "\\:c\\:type\\:`\$1\$2\$3 <\$1>`"],
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[$type_fp_param, "**\$1\\\\(\\\\)**"],
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[$type_fp_param2, "**\$1\\\\(\\\\)**"],
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[$type_func, "\$1()"],
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[$type_enum, "\\:c\\:type\\:`\$1 <\$2>`"],
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[$type_struct, "\\:c\\:type\\:`\$1 <\$2>`"],
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[$type_typedef, "\\:c\\:type\\:`\$1 <\$2>`"],
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[$type_union, "\\:c\\:type\\:`\$1 <\$2>`"],
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# in rst this can refer to any type
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[$type_fallback, "\\:c\\:type\\:`\$1`"],
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[$type_param_ref, "**\$1\$2**"]
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);
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my $blankline_rst = "\n";
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# read arguments
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if ($#ARGV == -1) {
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pod2usage(
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-message => "No arguments!\n",
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-exitval => 1,
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-verbose => 99,
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-sections => 'SYNOPSIS',
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-output => \*STDERR,
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);
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}
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my $kernelversion;
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my ($sphinx_major, $sphinx_minor, $sphinx_patch);
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my $dohighlight = "";
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my $verbose = 0;
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my $Werror = 0;
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my $output_mode = "rst";
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my $output_preformatted = 0;
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my $no_doc_sections = 0;
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my $enable_lineno = 0;
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my @highlights = @highlights_rst;
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my $blankline = $blankline_rst;
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my $modulename = "Kernel API";
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use constant {
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OUTPUT_ALL => 0, # output all symbols and doc sections
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OUTPUT_INCLUDE => 1, # output only specified symbols
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OUTPUT_EXPORTED => 2, # output exported symbols
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OUTPUT_INTERNAL => 3, # output non-exported symbols
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};
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my $output_selection = OUTPUT_ALL;
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my $show_not_found = 0; # No longer used
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my @export_file_list;
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my @build_time;
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if (defined($ENV{'KBUILD_BUILD_TIMESTAMP'}) &&
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(my $seconds = `date -d"${ENV{'KBUILD_BUILD_TIMESTAMP'}}" +%s`) ne '') {
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@build_time = gmtime($seconds);
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} else {
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@build_time = localtime;
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}
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my $man_date = ('January', 'February', 'March', 'April', 'May', 'June',
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'July', 'August', 'September', 'October',
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'November', 'December')[$build_time[4]] .
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" " . ($build_time[5]+1900);
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# Essentially these are globals.
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# They probably want to be tidied up, made more localised or something.
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# CAVEAT EMPTOR! Some of the others I localised may not want to be, which
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# could cause "use of undefined value" or other bugs.
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my ($function, %function_table, %parametertypes, $declaration_purpose);
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my %nosymbol_table = ();
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my $declaration_start_line;
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my ($type, $declaration_name, $return_type);
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my ($newsection, $newcontents, $prototype, $brcount, %source_map);
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if (defined($ENV{'KBUILD_VERBOSE'})) {
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$verbose = "$ENV{'KBUILD_VERBOSE'}";
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}
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if (defined($ENV{'KCFLAGS'})) {
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my $kcflags = "$ENV{'KCFLAGS'}";
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if ($kcflags =~ /Werror/) {
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$Werror = 1;
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}
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}
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if (defined($ENV{'KDOC_WERROR'})) {
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$Werror = "$ENV{'KDOC_WERROR'}";
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}
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# Generated docbook code is inserted in a template at a point where
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# docbook v3.1 requires a non-zero sequence of RefEntry's; see:
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# https://www.oasis-open.org/docbook/documentation/reference/html/refentry.html
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# We keep track of number of generated entries and generate a dummy
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# if needs be to ensure the expanded template can be postprocessed
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# into html.
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my $section_counter = 0;
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my $lineprefix="";
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# Parser states
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use constant {
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STATE_NORMAL => 0, # normal code
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STATE_NAME => 1, # looking for function name
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STATE_BODY_MAYBE => 2, # body - or maybe more description
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STATE_BODY => 3, # the body of the comment
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STATE_BODY_WITH_BLANK_LINE => 4, # the body, which has a blank line
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STATE_PROTO => 5, # scanning prototype
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STATE_DOCBLOCK => 6, # documentation block
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STATE_INLINE => 7, # gathering doc outside main block
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};
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my $state;
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my $in_doc_sect;
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my $leading_space;
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# Inline documentation state
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use constant {
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STATE_INLINE_NA => 0, # not applicable ($state != STATE_INLINE)
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STATE_INLINE_NAME => 1, # looking for member name (@foo:)
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STATE_INLINE_TEXT => 2, # looking for member documentation
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STATE_INLINE_END => 3, # done
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STATE_INLINE_ERROR => 4, # error - Comment without header was found.
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# Spit a warning as it's not
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# proper kernel-doc and ignore the rest.
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};
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my $inline_doc_state;
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#declaration types: can be
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# 'function', 'struct', 'union', 'enum', 'typedef'
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my $decl_type;
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# Name of the kernel-doc identifier for non-DOC markups
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my $identifier;
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my $doc_start = '^/\*\*\s*$'; # Allow whitespace at end of comment start.
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my $doc_end = '\*/';
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my $doc_com = '\s*\*\s*';
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my $doc_com_body = '\s*\* ?';
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my $doc_decl = $doc_com . '(\w+)';
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# @params and a strictly limited set of supported section names
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# Specifically:
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# Match @word:
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# @...:
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# @{section-name}:
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# while trying to not match literal block starts like "example::"
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#
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my $doc_sect = $doc_com .
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'\s*(\@[.\w]+|\@\.\.\.|description|context|returns?|notes?|examples?)\s*:([^:].*)?$';
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my $doc_content = $doc_com_body . '(.*)';
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my $doc_block = $doc_com . 'DOC:\s*(.*)?';
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my $doc_inline_start = '^\s*/\*\*\s*$';
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my $doc_inline_sect = '\s*\*\s*(@\s*[\w][\w\.]*\s*):(.*)';
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my $doc_inline_end = '^\s*\*/\s*$';
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my $doc_inline_oneline = '^\s*/\*\*\s*(@[\w\s]+):\s*(.*)\s*\*/\s*$';
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my $export_symbol = '^\s*EXPORT_SYMBOL(_GPL)?\s*\(\s*(\w+)\s*\)\s*;';
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my $function_pointer = qr{([^\(]*\(\*)\s*\)\s*\(([^\)]*)\)};
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my $attribute = qr{__attribute__\s*\(\([a-z0-9,_\*\s\(\)]*\)\)}i;
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my %parameterdescs;
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my %parameterdesc_start_lines;
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my @parameterlist;
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my %sections;
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my @sectionlist;
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my %section_start_lines;
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my $sectcheck;
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my $struct_actual;
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my $contents = "";
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my $new_start_line = 0;
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# the canonical section names. see also $doc_sect above.
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my $section_default = "Description"; # default section
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my $section_intro = "Introduction";
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my $section = $section_default;
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my $section_context = "Context";
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my $section_return = "Return";
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my $undescribed = "-- undescribed --";
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reset_state();
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while ($ARGV[0] =~ m/^--?(.*)/) {
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my $cmd = $1;
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shift @ARGV;
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if ($cmd eq "man") {
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$output_mode = "man";
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@highlights = @highlights_man;
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$blankline = $blankline_man;
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} elsif ($cmd eq "rst") {
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$output_mode = "rst";
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@highlights = @highlights_rst;
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$blankline = $blankline_rst;
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} elsif ($cmd eq "none") {
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$output_mode = "none";
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} elsif ($cmd eq "module") { # not needed for XML, inherits from calling document
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$modulename = shift @ARGV;
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} elsif ($cmd eq "function") { # to only output specific functions
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$output_selection = OUTPUT_INCLUDE;
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$function = shift @ARGV;
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$function_table{$function} = 1;
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} elsif ($cmd eq "nosymbol") { # Exclude specific symbols
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my $symbol = shift @ARGV;
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$nosymbol_table{$symbol} = 1;
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} elsif ($cmd eq "export") { # only exported symbols
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$output_selection = OUTPUT_EXPORTED;
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%function_table = ();
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} elsif ($cmd eq "internal") { # only non-exported symbols
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$output_selection = OUTPUT_INTERNAL;
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%function_table = ();
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} elsif ($cmd eq "export-file") {
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my $file = shift @ARGV;
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push(@export_file_list, $file);
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} elsif ($cmd eq "v") {
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$verbose = 1;
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} elsif ($cmd eq "Werror") {
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$Werror = 1;
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} elsif (($cmd eq "h") || ($cmd eq "help")) {
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pod2usage(-exitval => 0, -verbose => 2);
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} elsif ($cmd eq 'no-doc-sections') {
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$no_doc_sections = 1;
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} elsif ($cmd eq 'enable-lineno') {
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$enable_lineno = 1;
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} elsif ($cmd eq 'show-not-found') {
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$show_not_found = 1; # A no-op but don't fail
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} elsif ($cmd eq "sphinx-version") {
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my $ver_string = shift @ARGV;
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if ($ver_string =~ m/^(\d+)(\.\d+)?(\.\d+)?/) {
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$sphinx_major = $1;
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if (defined($2)) {
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$sphinx_minor = substr($2,1);
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} else {
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$sphinx_minor = 0;
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}
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if (defined($3)) {
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$sphinx_patch = substr($3,1)
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} else {
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$sphinx_patch = 0;
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}
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} else {
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die "Sphinx version should either major.minor or major.minor.patch format\n";
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}
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} else {
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# Unknown argument
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pod2usage(
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-message => "Argument unknown!\n",
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-exitval => 1,
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-verbose => 99,
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-sections => 'SYNOPSIS',
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-output => \*STDERR,
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);
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}
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if ($#ARGV < 0){
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pod2usage(
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-message => "FILE argument missing\n",
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-exitval => 1,
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-verbose => 99,
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-sections => 'SYNOPSIS',
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-output => \*STDERR,
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);
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}
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}
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# continue execution near EOF;
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# The C domain dialect changed on Sphinx 3. So, we need to check the
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# version in order to produce the right tags.
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sub findprog($)
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{
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foreach(split(/:/, $ENV{PATH})) {
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return "$_/$_[0]" if(-x "$_/$_[0]");
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}
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}
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sub get_sphinx_version()
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{
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my $ver;
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my $cmd = "sphinx-build";
|
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if (!findprog($cmd)) {
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my $cmd = "sphinx-build3";
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if (!findprog($cmd)) {
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$sphinx_major = 1;
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$sphinx_minor = 2;
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$sphinx_patch = 0;
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printf STDERR "Warning: Sphinx version not found. Using default (Sphinx version %d.%d.%d)\n",
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$sphinx_major, $sphinx_minor, $sphinx_patch;
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return;
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}
|
|
}
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|
|
|
open IN, "$cmd --version 2>&1 |";
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while (<IN>) {
|
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if (m/^\s*sphinx-build\s+([\d]+)\.([\d\.]+)(\+\/[\da-f]+)?$/) {
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$sphinx_major = $1;
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$sphinx_minor = $2;
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$sphinx_patch = $3;
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last;
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}
|
|
# Sphinx 1.2.x uses a different format
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|
if (m/^\s*Sphinx.*\s+([\d]+)\.([\d\.]+)$/) {
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$sphinx_major = $1;
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$sphinx_minor = $2;
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$sphinx_patch = $3;
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last;
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}
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}
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close IN;
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}
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# get kernel version from env
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sub get_kernel_version() {
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my $version = 'unknown kernel version';
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if (defined($ENV{'KERNELVERSION'})) {
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$version = $ENV{'KERNELVERSION'};
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}
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return $version;
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}
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|
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#
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sub print_lineno {
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my $lineno = shift;
|
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if ($enable_lineno && defined($lineno)) {
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print ".. LINENO " . $lineno . "\n";
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}
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}
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|
|
sub emit_warning {
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my $location = shift;
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my $msg = shift;
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print STDERR "$location: warning: $msg";
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++$warnings;
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}
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##
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|
# dumps section contents to arrays/hashes intended for that purpose.
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#
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sub dump_section {
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my $file = shift;
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my $name = shift;
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my $contents = join "\n", @_;
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|
|
if ($name =~ m/$type_param/) {
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|
$name = $1;
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$parameterdescs{$name} = $contents;
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|
$sectcheck = $sectcheck . $name . " ";
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$parameterdesc_start_lines{$name} = $new_start_line;
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$new_start_line = 0;
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|
} elsif ($name eq "@\.\.\.") {
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$name = "...";
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$parameterdescs{$name} = $contents;
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$sectcheck = $sectcheck . $name . " ";
|
|
$parameterdesc_start_lines{$name} = $new_start_line;
|
|
$new_start_line = 0;
|
|
} else {
|
|
if (defined($sections{$name}) && ($sections{$name} ne "")) {
|
|
# Only warn on user specified duplicate section names.
|
|
if ($name ne $section_default) {
|
|
emit_warning("${file}:$.", "duplicate section name '$name'\n");
|
|
}
|
|
$sections{$name} .= $contents;
|
|
} else {
|
|
$sections{$name} = $contents;
|
|
push @sectionlist, $name;
|
|
$section_start_lines{$name} = $new_start_line;
|
|
$new_start_line = 0;
|
|
}
|
|
}
|
|
}
|
|
|
|
##
|
|
# dump DOC: section after checking that it should go out
|
|
#
|
|
sub dump_doc_section {
|
|
my $file = shift;
|
|
my $name = shift;
|
|
my $contents = join "\n", @_;
|
|
|
|
if ($no_doc_sections) {
|
|
return;
|
|
}
|
|
|
|
return if (defined($nosymbol_table{$name}));
|
|
|
|
if (($output_selection == OUTPUT_ALL) ||
|
|
(($output_selection == OUTPUT_INCLUDE) &&
|
|
defined($function_table{$name})))
|
|
{
|
|
dump_section($file, $name, $contents);
|
|
output_blockhead({'sectionlist' => \@sectionlist,
|
|
'sections' => \%sections,
|
|
'module' => $modulename,
|
|
'content-only' => ($output_selection != OUTPUT_ALL), });
|
|
}
|
|
}
|
|
|
|
##
|
|
# output function
|
|
#
|
|
# parameterdescs, a hash.
|
|
# function => "function name"
|
|
# parameterlist => @list of parameters
|
|
# parameterdescs => %parameter descriptions
|
|
# sectionlist => @list of sections
|
|
# sections => %section descriptions
|
|
#
|
|
|
|
sub output_highlight {
|
|
my $contents = join "\n",@_;
|
|
my $line;
|
|
|
|
# DEBUG
|
|
# if (!defined $contents) {
|
|
# use Carp;
|
|
# confess "output_highlight got called with no args?\n";
|
|
# }
|
|
|
|
# print STDERR "contents b4:$contents\n";
|
|
eval $dohighlight;
|
|
die $@ if $@;
|
|
# print STDERR "contents af:$contents\n";
|
|
|
|
foreach $line (split "\n", $contents) {
|
|
if (! $output_preformatted) {
|
|
$line =~ s/^\s*//;
|
|
}
|
|
if ($line eq ""){
|
|
if (! $output_preformatted) {
|
|
print $lineprefix, $blankline;
|
|
}
|
|
} else {
|
|
if ($output_mode eq "man" && substr($line, 0, 1) eq ".") {
|
|
print "\\&$line";
|
|
} else {
|
|
print $lineprefix, $line;
|
|
}
|
|
}
|
|
print "\n";
|
|
}
|
|
}
|
|
|
|
##
|
|
# output function in man
|
|
sub output_function_man(%) {
|
|
my %args = %{$_[0]};
|
|
my ($parameter, $section);
|
|
my $count;
|
|
|
|
print ".TH \"$args{'function'}\" 9 \"$args{'function'}\" \"$man_date\" \"Kernel Hacker's Manual\" LINUX\n";
|
|
|
|
print ".SH NAME\n";
|
|
print $args{'function'} . " \\- " . $args{'purpose'} . "\n";
|
|
|
|
print ".SH SYNOPSIS\n";
|
|
if ($args{'functiontype'} ne "") {
|
|
print ".B \"" . $args{'functiontype'} . "\" " . $args{'function'} . "\n";
|
|
} else {
|
|
print ".B \"" . $args{'function'} . "\n";
|
|
}
|
|
$count = 0;
|
|
my $parenth = "(";
|
|
my $post = ",";
|
|
foreach my $parameter (@{$args{'parameterlist'}}) {
|
|
if ($count == $#{$args{'parameterlist'}}) {
|
|
$post = ");";
|
|
}
|
|
$type = $args{'parametertypes'}{$parameter};
|
|
if ($type =~ m/$function_pointer/) {
|
|
# pointer-to-function
|
|
print ".BI \"" . $parenth . $1 . "\" " . " \") (" . $2 . ")" . $post . "\"\n";
|
|
} else {
|
|
$type =~ s/([^\*])$/$1 /;
|
|
print ".BI \"" . $parenth . $type . "\" " . " \"" . $post . "\"\n";
|
|
}
|
|
$count++;
|
|
$parenth = "";
|
|
}
|
|
|
|
print ".SH ARGUMENTS\n";
|
|
foreach $parameter (@{$args{'parameterlist'}}) {
|
|
my $parameter_name = $parameter;
|
|
$parameter_name =~ s/\[.*//;
|
|
|
|
print ".IP \"" . $parameter . "\" 12\n";
|
|
output_highlight($args{'parameterdescs'}{$parameter_name});
|
|
}
|
|
foreach $section (@{$args{'sectionlist'}}) {
|
|
print ".SH \"", uc $section, "\"\n";
|
|
output_highlight($args{'sections'}{$section});
|
|
}
|
|
}
|
|
|
|
##
|
|
# output enum in man
|
|
sub output_enum_man(%) {
|
|
my %args = %{$_[0]};
|
|
my ($parameter, $section);
|
|
my $count;
|
|
|
|
print ".TH \"$args{'module'}\" 9 \"enum $args{'enum'}\" \"$man_date\" \"API Manual\" LINUX\n";
|
|
|
|
print ".SH NAME\n";
|
|
print "enum " . $args{'enum'} . " \\- " . $args{'purpose'} . "\n";
|
|
|
|
print ".SH SYNOPSIS\n";
|
|
print "enum " . $args{'enum'} . " {\n";
|
|
$count = 0;
|
|
foreach my $parameter (@{$args{'parameterlist'}}) {
|
|
print ".br\n.BI \" $parameter\"\n";
|
|
if ($count == $#{$args{'parameterlist'}}) {
|
|
print "\n};\n";
|
|
last;
|
|
}
|
|
else {
|
|
print ", \n.br\n";
|
|
}
|
|
$count++;
|
|
}
|
|
|
|
print ".SH Constants\n";
|
|
foreach $parameter (@{$args{'parameterlist'}}) {
|
|
my $parameter_name = $parameter;
|
|
$parameter_name =~ s/\[.*//;
|
|
|
|
print ".IP \"" . $parameter . "\" 12\n";
|
|
output_highlight($args{'parameterdescs'}{$parameter_name});
|
|
}
|
|
foreach $section (@{$args{'sectionlist'}}) {
|
|
print ".SH \"$section\"\n";
|
|
output_highlight($args{'sections'}{$section});
|
|
}
|
|
}
|
|
|
|
##
|
|
# output struct in man
|
|
sub output_struct_man(%) {
|
|
my %args = %{$_[0]};
|
|
my ($parameter, $section);
|
|
|
|
print ".TH \"$args{'module'}\" 9 \"" . $args{'type'} . " " . $args{'struct'} . "\" \"$man_date\" \"API Manual\" LINUX\n";
|
|
|
|
print ".SH NAME\n";
|
|
print $args{'type'} . " " . $args{'struct'} . " \\- " . $args{'purpose'} . "\n";
|
|
|
|
my $declaration = $args{'definition'};
|
|
$declaration =~ s/\t/ /g;
|
|
$declaration =~ s/\n/"\n.br\n.BI \"/g;
|
|
print ".SH SYNOPSIS\n";
|
|
print $args{'type'} . " " . $args{'struct'} . " {\n.br\n";
|
|
print ".BI \"$declaration\n};\n.br\n\n";
|
|
|
|
print ".SH Members\n";
|
|
foreach $parameter (@{$args{'parameterlist'}}) {
|
|
($parameter =~ /^#/) && next;
|
|
|
|
my $parameter_name = $parameter;
|
|
$parameter_name =~ s/\[.*//;
|
|
|
|
($args{'parameterdescs'}{$parameter_name} ne $undescribed) || next;
|
|
print ".IP \"" . $parameter . "\" 12\n";
|
|
output_highlight($args{'parameterdescs'}{$parameter_name});
|
|
}
|
|
foreach $section (@{$args{'sectionlist'}}) {
|
|
print ".SH \"$section\"\n";
|
|
output_highlight($args{'sections'}{$section});
|
|
}
|
|
}
|
|
|
|
##
|
|
# output typedef in man
|
|
sub output_typedef_man(%) {
|
|
my %args = %{$_[0]};
|
|
my ($parameter, $section);
|
|
|
|
print ".TH \"$args{'module'}\" 9 \"$args{'typedef'}\" \"$man_date\" \"API Manual\" LINUX\n";
|
|
|
|
print ".SH NAME\n";
|
|
print "typedef " . $args{'typedef'} . " \\- " . $args{'purpose'} . "\n";
|
|
|
|
foreach $section (@{$args{'sectionlist'}}) {
|
|
print ".SH \"$section\"\n";
|
|
output_highlight($args{'sections'}{$section});
|
|
}
|
|
}
|
|
|
|
sub output_blockhead_man(%) {
|
|
my %args = %{$_[0]};
|
|
my ($parameter, $section);
|
|
my $count;
|
|
|
|
print ".TH \"$args{'module'}\" 9 \"$args{'module'}\" \"$man_date\" \"API Manual\" LINUX\n";
|
|
|
|
foreach $section (@{$args{'sectionlist'}}) {
|
|
print ".SH \"$section\"\n";
|
|
output_highlight($args{'sections'}{$section});
|
|
}
|
|
}
|
|
|
|
##
|
|
# output in restructured text
|
|
#
|
|
|
|
#
|
|
# This could use some work; it's used to output the DOC: sections, and
|
|
# starts by putting out the name of the doc section itself, but that tends
|
|
# to duplicate a header already in the template file.
|
|
#
|
|
sub output_blockhead_rst(%) {
|
|
my %args = %{$_[0]};
|
|
my ($parameter, $section);
|
|
|
|
foreach $section (@{$args{'sectionlist'}}) {
|
|
next if (defined($nosymbol_table{$section}));
|
|
|
|
if ($output_selection != OUTPUT_INCLUDE) {
|
|
print ".. _$section:\n\n";
|
|
print "**$section**\n\n";
|
|
}
|
|
print_lineno($section_start_lines{$section});
|
|
output_highlight_rst($args{'sections'}{$section});
|
|
print "\n";
|
|
}
|
|
}
|
|
|
|
#
|
|
# Apply the RST highlights to a sub-block of text.
|
|
#
|
|
sub highlight_block($) {
|
|
# The dohighlight kludge requires the text be called $contents
|
|
my $contents = shift;
|
|
eval $dohighlight;
|
|
die $@ if $@;
|
|
return $contents;
|
|
}
|
|
|
|
#
|
|
# Regexes used only here.
|
|
#
|
|
my $sphinx_literal = '^[^.].*::$';
|
|
my $sphinx_cblock = '^\.\.\ +code-block::';
|
|
|
|
sub output_highlight_rst {
|
|
my $input = join "\n",@_;
|
|
my $output = "";
|
|
my $line;
|
|
my $in_literal = 0;
|
|
my $litprefix;
|
|
my $block = "";
|
|
|
|
foreach $line (split "\n",$input) {
|
|
#
|
|
# If we're in a literal block, see if we should drop out
|
|
# of it. Otherwise pass the line straight through unmunged.
|
|
#
|
|
if ($in_literal) {
|
|
if (! ($line =~ /^\s*$/)) {
|
|
#
|
|
# If this is the first non-blank line in a literal
|
|
# block we need to figure out what the proper indent is.
|
|
#
|
|
if ($litprefix eq "") {
|
|
$line =~ /^(\s*)/;
|
|
$litprefix = '^' . $1;
|
|
$output .= $line . "\n";
|
|
} elsif (! ($line =~ /$litprefix/)) {
|
|
$in_literal = 0;
|
|
} else {
|
|
$output .= $line . "\n";
|
|
}
|
|
} else {
|
|
$output .= $line . "\n";
|
|
}
|
|
}
|
|
#
|
|
# Not in a literal block (or just dropped out)
|
|
#
|
|
if (! $in_literal) {
|
|
$block .= $line . "\n";
|
|
if (($line =~ /$sphinx_literal/) || ($line =~ /$sphinx_cblock/)) {
|
|
$in_literal = 1;
|
|
$litprefix = "";
|
|
$output .= highlight_block($block);
|
|
$block = ""
|
|
}
|
|
}
|
|
}
|
|
|
|
if ($block) {
|
|
$output .= highlight_block($block);
|
|
}
|
|
foreach $line (split "\n", $output) {
|
|
print $lineprefix . $line . "\n";
|
|
}
|
|
}
|
|
|
|
sub output_function_rst(%) {
|
|
my %args = %{$_[0]};
|
|
my ($parameter, $section);
|
|
my $oldprefix = $lineprefix;
|
|
my $start = "";
|
|
my $is_macro = 0;
|
|
|
|
if ($sphinx_major < 3) {
|
|
if ($args{'typedef'}) {
|
|
print ".. c:type:: ". $args{'function'} . "\n\n";
|
|
print_lineno($declaration_start_line);
|
|
print " **Typedef**: ";
|
|
$lineprefix = "";
|
|
output_highlight_rst($args{'purpose'});
|
|
$start = "\n\n**Syntax**\n\n ``";
|
|
$is_macro = 1;
|
|
} else {
|
|
print ".. c:function:: ";
|
|
}
|
|
} else {
|
|
if ($args{'typedef'} || $args{'functiontype'} eq "") {
|
|
$is_macro = 1;
|
|
print ".. c:macro:: ". $args{'function'} . "\n\n";
|
|
} else {
|
|
print ".. c:function:: ";
|
|
}
|
|
|
|
if ($args{'typedef'}) {
|
|
print_lineno($declaration_start_line);
|
|
print " **Typedef**: ";
|
|
$lineprefix = "";
|
|
output_highlight_rst($args{'purpose'});
|
|
$start = "\n\n**Syntax**\n\n ``";
|
|
} else {
|
|
print "``" if ($is_macro);
|
|
}
|
|
}
|
|
if ($args{'functiontype'} ne "") {
|
|
$start .= $args{'functiontype'} . " " . $args{'function'} . " (";
|
|
} else {
|
|
$start .= $args{'function'} . " (";
|
|
}
|
|
print $start;
|
|
|
|
my $count = 0;
|
|
foreach my $parameter (@{$args{'parameterlist'}}) {
|
|
if ($count ne 0) {
|
|
print ", ";
|
|
}
|
|
$count++;
|
|
$type = $args{'parametertypes'}{$parameter};
|
|
|
|
if ($type =~ m/$function_pointer/) {
|
|
# pointer-to-function
|
|
print $1 . $parameter . ") (" . $2 . ")";
|
|
} else {
|
|
print $type;
|
|
}
|
|
}
|
|
if ($is_macro) {
|
|
print ")``\n\n";
|
|
} else {
|
|
print ")\n\n";
|
|
}
|
|
if (!$args{'typedef'}) {
|
|
print_lineno($declaration_start_line);
|
|
$lineprefix = " ";
|
|
output_highlight_rst($args{'purpose'});
|
|
print "\n";
|
|
}
|
|
|
|
print "**Parameters**\n\n";
|
|
$lineprefix = " ";
|
|
foreach $parameter (@{$args{'parameterlist'}}) {
|
|
my $parameter_name = $parameter;
|
|
$parameter_name =~ s/\[.*//;
|
|
$type = $args{'parametertypes'}{$parameter};
|
|
|
|
if ($type ne "") {
|
|
print "``$type``\n";
|
|
} else {
|
|
print "``$parameter``\n";
|
|
}
|
|
|
|
print_lineno($parameterdesc_start_lines{$parameter_name});
|
|
|
|
if (defined($args{'parameterdescs'}{$parameter_name}) &&
|
|
$args{'parameterdescs'}{$parameter_name} ne $undescribed) {
|
|
output_highlight_rst($args{'parameterdescs'}{$parameter_name});
|
|
} else {
|
|
print " *undescribed*\n";
|
|
}
|
|
print "\n";
|
|
}
|
|
|
|
$lineprefix = $oldprefix;
|
|
output_section_rst(@_);
|
|
}
|
|
|
|
sub output_section_rst(%) {
|
|
my %args = %{$_[0]};
|
|
my $section;
|
|
my $oldprefix = $lineprefix;
|
|
$lineprefix = "";
|
|
|
|
foreach $section (@{$args{'sectionlist'}}) {
|
|
print "**$section**\n\n";
|
|
print_lineno($section_start_lines{$section});
|
|
output_highlight_rst($args{'sections'}{$section});
|
|
print "\n";
|
|
}
|
|
print "\n";
|
|
$lineprefix = $oldprefix;
|
|
}
|
|
|
|
sub output_enum_rst(%) {
|
|
my %args = %{$_[0]};
|
|
my ($parameter);
|
|
my $oldprefix = $lineprefix;
|
|
my $count;
|
|
|
|
if ($sphinx_major < 3) {
|
|
my $name = "enum " . $args{'enum'};
|
|
print "\n\n.. c:type:: " . $name . "\n\n";
|
|
} else {
|
|
my $name = $args{'enum'};
|
|
print "\n\n.. c:enum:: " . $name . "\n\n";
|
|
}
|
|
print_lineno($declaration_start_line);
|
|
$lineprefix = " ";
|
|
output_highlight_rst($args{'purpose'});
|
|
print "\n";
|
|
|
|
print "**Constants**\n\n";
|
|
$lineprefix = " ";
|
|
foreach $parameter (@{$args{'parameterlist'}}) {
|
|
print "``$parameter``\n";
|
|
if ($args{'parameterdescs'}{$parameter} ne $undescribed) {
|
|
output_highlight_rst($args{'parameterdescs'}{$parameter});
|
|
} else {
|
|
print " *undescribed*\n";
|
|
}
|
|
print "\n";
|
|
}
|
|
|
|
$lineprefix = $oldprefix;
|
|
output_section_rst(@_);
|
|
}
|
|
|
|
sub output_typedef_rst(%) {
|
|
my %args = %{$_[0]};
|
|
my ($parameter);
|
|
my $oldprefix = $lineprefix;
|
|
my $name;
|
|
|
|
if ($sphinx_major < 3) {
|
|
$name = "typedef " . $args{'typedef'};
|
|
} else {
|
|
$name = $args{'typedef'};
|
|
}
|
|
print "\n\n.. c:type:: " . $name . "\n\n";
|
|
print_lineno($declaration_start_line);
|
|
$lineprefix = " ";
|
|
output_highlight_rst($args{'purpose'});
|
|
print "\n";
|
|
|
|
$lineprefix = $oldprefix;
|
|
output_section_rst(@_);
|
|
}
|
|
|
|
sub output_struct_rst(%) {
|
|
my %args = %{$_[0]};
|
|
my ($parameter);
|
|
my $oldprefix = $lineprefix;
|
|
|
|
if ($sphinx_major < 3) {
|
|
my $name = $args{'type'} . " " . $args{'struct'};
|
|
print "\n\n.. c:type:: " . $name . "\n\n";
|
|
} else {
|
|
my $name = $args{'struct'};
|
|
if ($args{'type'} eq 'union') {
|
|
print "\n\n.. c:union:: " . $name . "\n\n";
|
|
} else {
|
|
print "\n\n.. c:struct:: " . $name . "\n\n";
|
|
}
|
|
}
|
|
print_lineno($declaration_start_line);
|
|
$lineprefix = " ";
|
|
output_highlight_rst($args{'purpose'});
|
|
print "\n";
|
|
|
|
print "**Definition**\n\n";
|
|
print "::\n\n";
|
|
my $declaration = $args{'definition'};
|
|
$declaration =~ s/\t/ /g;
|
|
print " " . $args{'type'} . " " . $args{'struct'} . " {\n$declaration };\n\n";
|
|
|
|
print "**Members**\n\n";
|
|
$lineprefix = " ";
|
|
foreach $parameter (@{$args{'parameterlist'}}) {
|
|
($parameter =~ /^#/) && next;
|
|
|
|
my $parameter_name = $parameter;
|
|
$parameter_name =~ s/\[.*//;
|
|
|
|
($args{'parameterdescs'}{$parameter_name} ne $undescribed) || next;
|
|
$type = $args{'parametertypes'}{$parameter};
|
|
print_lineno($parameterdesc_start_lines{$parameter_name});
|
|
print "``" . $parameter . "``\n";
|
|
output_highlight_rst($args{'parameterdescs'}{$parameter_name});
|
|
print "\n";
|
|
}
|
|
print "\n";
|
|
|
|
$lineprefix = $oldprefix;
|
|
output_section_rst(@_);
|
|
}
|
|
|
|
## none mode output functions
|
|
|
|
sub output_function_none(%) {
|
|
}
|
|
|
|
sub output_enum_none(%) {
|
|
}
|
|
|
|
sub output_typedef_none(%) {
|
|
}
|
|
|
|
sub output_struct_none(%) {
|
|
}
|
|
|
|
sub output_blockhead_none(%) {
|
|
}
|
|
|
|
##
|
|
# generic output function for all types (function, struct/union, typedef, enum);
|
|
# calls the generated, variable output_ function name based on
|
|
# functype and output_mode
|
|
sub output_declaration {
|
|
no strict 'refs';
|
|
my $name = shift;
|
|
my $functype = shift;
|
|
my $func = "output_${functype}_$output_mode";
|
|
|
|
return if (defined($nosymbol_table{$name}));
|
|
|
|
if (($output_selection == OUTPUT_ALL) ||
|
|
(($output_selection == OUTPUT_INCLUDE ||
|
|
$output_selection == OUTPUT_EXPORTED) &&
|
|
defined($function_table{$name})) ||
|
|
($output_selection == OUTPUT_INTERNAL &&
|
|
!($functype eq "function" && defined($function_table{$name}))))
|
|
{
|
|
&$func(@_);
|
|
$section_counter++;
|
|
}
|
|
}
|
|
|
|
##
|
|
# generic output function - calls the right one based on current output mode.
|
|
sub output_blockhead {
|
|
no strict 'refs';
|
|
my $func = "output_blockhead_" . $output_mode;
|
|
&$func(@_);
|
|
$section_counter++;
|
|
}
|
|
|
|
##
|
|
# takes a declaration (struct, union, enum, typedef) and
|
|
# invokes the right handler. NOT called for functions.
|
|
sub dump_declaration($$) {
|
|
no strict 'refs';
|
|
my ($prototype, $file) = @_;
|
|
my $func = "dump_" . $decl_type;
|
|
&$func(@_);
|
|
}
|
|
|
|
sub dump_union($$) {
|
|
dump_struct(@_);
|
|
}
|
|
|
|
sub dump_struct($$) {
|
|
my $x = shift;
|
|
my $file = shift;
|
|
my $decl_type;
|
|
my $members;
|
|
my $type = qr{struct|union};
|
|
# For capturing struct/union definition body, i.e. "{members*}qualifiers*"
|
|
my $qualifiers = qr{$attribute|__packed|__aligned|____cacheline_aligned_in_smp|____cacheline_aligned};
|
|
my $definition_body = qr{\{(.*)\}\s*$qualifiers*};
|
|
my $struct_members = qr{($type)([^\{\};]+)\{([^\{\}]*)\}([^\{\}\;]*)\;};
|
|
|
|
if ($x =~ /($type)\s+(\w+)\s*$definition_body/) {
|
|
$decl_type = $1;
|
|
$declaration_name = $2;
|
|
$members = $3;
|
|
} elsif ($x =~ /typedef\s+($type)\s*$definition_body\s*(\w+)\s*;/) {
|
|
$decl_type = $1;
|
|
$declaration_name = $3;
|
|
$members = $2;
|
|
}
|
|
|
|
if ($members) {
|
|
if ($identifier ne $declaration_name) {
|
|
emit_warning("${file}:$.", "expecting prototype for $decl_type $identifier. Prototype was for $decl_type $declaration_name instead\n");
|
|
return;
|
|
}
|
|
|
|
# ignore members marked private:
|
|
$members =~ s/\/\*\s*private:.*?\/\*\s*public:.*?\*\///gosi;
|
|
$members =~ s/\/\*\s*private:.*//gosi;
|
|
# strip comments:
|
|
$members =~ s/\/\*.*?\*\///gos;
|
|
# strip attributes
|
|
$members =~ s/\s*$attribute/ /gi;
|
|
$members =~ s/\s*__aligned\s*\([^;]*\)/ /gos;
|
|
$members =~ s/\s*__packed\s*/ /gos;
|
|
$members =~ s/\s*CRYPTO_MINALIGN_ATTR/ /gos;
|
|
$members =~ s/\s*____cacheline_aligned_in_smp/ /gos;
|
|
$members =~ s/\s*____cacheline_aligned/ /gos;
|
|
# unwrap struct_group():
|
|
# - first eat non-declaration parameters and rewrite for final match
|
|
# - then remove macro, outer parens, and trailing semicolon
|
|
$members =~ s/\bstruct_group\s*\(([^,]*,)/STRUCT_GROUP(/gos;
|
|
$members =~ s/\bstruct_group_(attr|tagged)\s*\(([^,]*,){2}/STRUCT_GROUP(/gos;
|
|
$members =~ s/\b__struct_group\s*\(([^,]*,){3}/STRUCT_GROUP(/gos;
|
|
$members =~ s/\bSTRUCT_GROUP(\(((?:(?>[^)(]+)|(?1))*)\))[^;]*;/$2/gos;
|
|
|
|
my $args = qr{([^,)]+)};
|
|
# replace DECLARE_BITMAP
|
|
$members =~ s/__ETHTOOL_DECLARE_LINK_MODE_MASK\s*\(([^\)]+)\)/DECLARE_BITMAP($1, __ETHTOOL_LINK_MODE_MASK_NBITS)/gos;
|
|
$members =~ s/DECLARE_PHY_INTERFACE_MASK\s*\(([^\)]+)\)/DECLARE_BITMAP($1, PHY_INTERFACE_MODE_MAX)/gos;
|
|
$members =~ s/DECLARE_BITMAP\s*\($args,\s*$args\)/unsigned long $1\[BITS_TO_LONGS($2)\]/gos;
|
|
# replace DECLARE_HASHTABLE
|
|
$members =~ s/DECLARE_HASHTABLE\s*\($args,\s*$args\)/unsigned long $1\[1 << (($2) - 1)\]/gos;
|
|
# replace DECLARE_KFIFO
|
|
$members =~ s/DECLARE_KFIFO\s*\($args,\s*$args,\s*$args\)/$2 \*$1/gos;
|
|
# replace DECLARE_KFIFO_PTR
|
|
$members =~ s/DECLARE_KFIFO_PTR\s*\($args,\s*$args\)/$2 \*$1/gos;
|
|
# replace DECLARE_FLEX_ARRAY
|
|
$members =~ s/(?:__)?DECLARE_FLEX_ARRAY\s*\($args,\s*$args\)/$1 $2\[\]/gos;
|
|
my $declaration = $members;
|
|
|
|
# Split nested struct/union elements as newer ones
|
|
while ($members =~ m/$struct_members/) {
|
|
my $newmember;
|
|
my $maintype = $1;
|
|
my $ids = $4;
|
|
my $content = $3;
|
|
foreach my $id(split /,/, $ids) {
|
|
$newmember .= "$maintype $id; ";
|
|
|
|
$id =~ s/[:\[].*//;
|
|
$id =~ s/^\s*\**(\S+)\s*/$1/;
|
|
foreach my $arg (split /;/, $content) {
|
|
next if ($arg =~ m/^\s*$/);
|
|
if ($arg =~ m/^([^\(]+\(\*?\s*)([\w\.]*)(\s*\).*)/) {
|
|
# pointer-to-function
|
|
my $type = $1;
|
|
my $name = $2;
|
|
my $extra = $3;
|
|
next if (!$name);
|
|
if ($id =~ m/^\s*$/) {
|
|
# anonymous struct/union
|
|
$newmember .= "$type$name$extra; ";
|
|
} else {
|
|
$newmember .= "$type$id.$name$extra; ";
|
|
}
|
|
} else {
|
|
my $type;
|
|
my $names;
|
|
$arg =~ s/^\s+//;
|
|
$arg =~ s/\s+$//;
|
|
# Handle bitmaps
|
|
$arg =~ s/:\s*\d+\s*//g;
|
|
# Handle arrays
|
|
$arg =~ s/\[.*\]//g;
|
|
# The type may have multiple words,
|
|
# and multiple IDs can be defined, like:
|
|
# const struct foo, *bar, foobar
|
|
# So, we remove spaces when parsing the
|
|
# names, in order to match just names
|
|
# and commas for the names
|
|
$arg =~ s/\s*,\s*/,/g;
|
|
if ($arg =~ m/(.*)\s+([\S+,]+)/) {
|
|
$type = $1;
|
|
$names = $2;
|
|
} else {
|
|
$newmember .= "$arg; ";
|
|
next;
|
|
}
|
|
foreach my $name (split /,/, $names) {
|
|
$name =~ s/^\s*\**(\S+)\s*/$1/;
|
|
next if (($name =~ m/^\s*$/));
|
|
if ($id =~ m/^\s*$/) {
|
|
# anonymous struct/union
|
|
$newmember .= "$type $name; ";
|
|
} else {
|
|
$newmember .= "$type $id.$name; ";
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
$members =~ s/$struct_members/$newmember/;
|
|
}
|
|
|
|
# Ignore other nested elements, like enums
|
|
$members =~ s/(\{[^\{\}]*\})//g;
|
|
|
|
create_parameterlist($members, ';', $file, $declaration_name);
|
|
check_sections($file, $declaration_name, $decl_type, $sectcheck, $struct_actual);
|
|
|
|
# Adjust declaration for better display
|
|
$declaration =~ s/([\{;])/$1\n/g;
|
|
$declaration =~ s/\}\s+;/};/g;
|
|
# Better handle inlined enums
|
|
do {} while ($declaration =~ s/(enum\s+\{[^\}]+),([^\n])/$1,\n$2/);
|
|
|
|
my @def_args = split /\n/, $declaration;
|
|
my $level = 1;
|
|
$declaration = "";
|
|
foreach my $clause (@def_args) {
|
|
$clause =~ s/^\s+//;
|
|
$clause =~ s/\s+$//;
|
|
$clause =~ s/\s+/ /;
|
|
next if (!$clause);
|
|
$level-- if ($clause =~ m/(\})/ && $level > 1);
|
|
if (!($clause =~ m/^\s*#/)) {
|
|
$declaration .= "\t" x $level;
|
|
}
|
|
$declaration .= "\t" . $clause . "\n";
|
|
$level++ if ($clause =~ m/(\{)/ && !($clause =~m/\}/));
|
|
}
|
|
output_declaration($declaration_name,
|
|
'struct',
|
|
{'struct' => $declaration_name,
|
|
'module' => $modulename,
|
|
'definition' => $declaration,
|
|
'parameterlist' => \@parameterlist,
|
|
'parameterdescs' => \%parameterdescs,
|
|
'parametertypes' => \%parametertypes,
|
|
'sectionlist' => \@sectionlist,
|
|
'sections' => \%sections,
|
|
'purpose' => $declaration_purpose,
|
|
'type' => $decl_type
|
|
});
|
|
}
|
|
else {
|
|
print STDERR "${file}:$.: error: Cannot parse struct or union!\n";
|
|
++$errors;
|
|
}
|
|
}
|
|
|
|
|
|
sub show_warnings($$) {
|
|
my $functype = shift;
|
|
my $name = shift;
|
|
|
|
return 0 if (defined($nosymbol_table{$name}));
|
|
|
|
return 1 if ($output_selection == OUTPUT_ALL);
|
|
|
|
if ($output_selection == OUTPUT_EXPORTED) {
|
|
if (defined($function_table{$name})) {
|
|
return 1;
|
|
} else {
|
|
return 0;
|
|
}
|
|
}
|
|
if ($output_selection == OUTPUT_INTERNAL) {
|
|
if (!($functype eq "function" && defined($function_table{$name}))) {
|
|
return 1;
|
|
} else {
|
|
return 0;
|
|
}
|
|
}
|
|
if ($output_selection == OUTPUT_INCLUDE) {
|
|
if (defined($function_table{$name})) {
|
|
return 1;
|
|
} else {
|
|
return 0;
|
|
}
|
|
}
|
|
die("Please add the new output type at show_warnings()");
|
|
}
|
|
|
|
sub dump_enum($$) {
|
|
my $x = shift;
|
|
my $file = shift;
|
|
my $members;
|
|
|
|
|
|
$x =~ s@/\*.*?\*/@@gos; # strip comments.
|
|
# strip #define macros inside enums
|
|
$x =~ s@#\s*((define|ifdef)\s+|endif)[^;]*;@@gos;
|
|
|
|
if ($x =~ /typedef\s+enum\s*\{(.*)\}\s*(\w*)\s*;/) {
|
|
$declaration_name = $2;
|
|
$members = $1;
|
|
} elsif ($x =~ /enum\s+(\w*)\s*\{(.*)\}/) {
|
|
$declaration_name = $1;
|
|
$members = $2;
|
|
}
|
|
|
|
if ($members) {
|
|
if ($identifier ne $declaration_name) {
|
|
if ($identifier eq "") {
|
|
emit_warning("${file}:$.", "wrong kernel-doc identifier on line:\n");
|
|
} else {
|
|
emit_warning("${file}:$.", "expecting prototype for enum $identifier. Prototype was for enum $declaration_name instead\n");
|
|
}
|
|
return;
|
|
}
|
|
$declaration_name = "(anonymous)" if ($declaration_name eq "");
|
|
|
|
my %_members;
|
|
|
|
$members =~ s/\s+$//;
|
|
|
|
foreach my $arg (split ',', $members) {
|
|
$arg =~ s/^\s*(\w+).*/$1/;
|
|
push @parameterlist, $arg;
|
|
if (!$parameterdescs{$arg}) {
|
|
$parameterdescs{$arg} = $undescribed;
|
|
if (show_warnings("enum", $declaration_name)) {
|
|
emit_warning("${file}:$.", "Enum value '$arg' not described in enum '$declaration_name'\n");
|
|
}
|
|
}
|
|
$_members{$arg} = 1;
|
|
}
|
|
|
|
while (my ($k, $v) = each %parameterdescs) {
|
|
if (!exists($_members{$k})) {
|
|
if (show_warnings("enum", $declaration_name)) {
|
|
emit_warning("${file}:$.", "Excess enum value '$k' description in '$declaration_name'\n");
|
|
}
|
|
}
|
|
}
|
|
|
|
output_declaration($declaration_name,
|
|
'enum',
|
|
{'enum' => $declaration_name,
|
|
'module' => $modulename,
|
|
'parameterlist' => \@parameterlist,
|
|
'parameterdescs' => \%parameterdescs,
|
|
'sectionlist' => \@sectionlist,
|
|
'sections' => \%sections,
|
|
'purpose' => $declaration_purpose
|
|
});
|
|
} else {
|
|
print STDERR "${file}:$.: error: Cannot parse enum!\n";
|
|
++$errors;
|
|
}
|
|
}
|
|
|
|
my $typedef_type = qr { ((?:\s+[\w\*]+\b){1,8})\s* }x;
|
|
my $typedef_ident = qr { \*?\s*(\w\S+)\s* }x;
|
|
my $typedef_args = qr { \s*\((.*)\); }x;
|
|
|
|
my $typedef1 = qr { typedef$typedef_type\($typedef_ident\)$typedef_args }x;
|
|
my $typedef2 = qr { typedef$typedef_type$typedef_ident$typedef_args }x;
|
|
|
|
sub dump_typedef($$) {
|
|
my $x = shift;
|
|
my $file = shift;
|
|
|
|
$x =~ s@/\*.*?\*/@@gos; # strip comments.
|
|
|
|
# Parse function typedef prototypes
|
|
if ($x =~ $typedef1 || $x =~ $typedef2) {
|
|
$return_type = $1;
|
|
$declaration_name = $2;
|
|
my $args = $3;
|
|
$return_type =~ s/^\s+//;
|
|
|
|
if ($identifier ne $declaration_name) {
|
|
emit_warning("${file}:$.", "expecting prototype for typedef $identifier. Prototype was for typedef $declaration_name instead\n");
|
|
return;
|
|
}
|
|
|
|
create_parameterlist($args, ',', $file, $declaration_name);
|
|
|
|
output_declaration($declaration_name,
|
|
'function',
|
|
{'function' => $declaration_name,
|
|
'typedef' => 1,
|
|
'module' => $modulename,
|
|
'functiontype' => $return_type,
|
|
'parameterlist' => \@parameterlist,
|
|
'parameterdescs' => \%parameterdescs,
|
|
'parametertypes' => \%parametertypes,
|
|
'sectionlist' => \@sectionlist,
|
|
'sections' => \%sections,
|
|
'purpose' => $declaration_purpose
|
|
});
|
|
return;
|
|
}
|
|
|
|
while (($x =~ /\(*.\)\s*;$/) || ($x =~ /\[*.\]\s*;$/)) {
|
|
$x =~ s/\(*.\)\s*;$/;/;
|
|
$x =~ s/\[*.\]\s*;$/;/;
|
|
}
|
|
|
|
if ($x =~ /typedef.*\s+(\w+)\s*;/) {
|
|
$declaration_name = $1;
|
|
|
|
if ($identifier ne $declaration_name) {
|
|
emit_warning("${file}:$.", "expecting prototype for typedef $identifier. Prototype was for typedef $declaration_name instead\n");
|
|
return;
|
|
}
|
|
|
|
output_declaration($declaration_name,
|
|
'typedef',
|
|
{'typedef' => $declaration_name,
|
|
'module' => $modulename,
|
|
'sectionlist' => \@sectionlist,
|
|
'sections' => \%sections,
|
|
'purpose' => $declaration_purpose
|
|
});
|
|
}
|
|
else {
|
|
print STDERR "${file}:$.: error: Cannot parse typedef!\n";
|
|
++$errors;
|
|
}
|
|
}
|
|
|
|
sub save_struct_actual($) {
|
|
my $actual = shift;
|
|
|
|
# strip all spaces from the actual param so that it looks like one string item
|
|
$actual =~ s/\s*//g;
|
|
$struct_actual = $struct_actual . $actual . " ";
|
|
}
|
|
|
|
sub create_parameterlist($$$$) {
|
|
my $args = shift;
|
|
my $splitter = shift;
|
|
my $file = shift;
|
|
my $declaration_name = shift;
|
|
my $type;
|
|
my $param;
|
|
|
|
# temporarily replace commas inside function pointer definition
|
|
my $arg_expr = qr{\([^\),]+};
|
|
while ($args =~ /$arg_expr,/) {
|
|
$args =~ s/($arg_expr),/$1#/g;
|
|
}
|
|
|
|
foreach my $arg (split($splitter, $args)) {
|
|
# strip comments
|
|
$arg =~ s/\/\*.*\*\///;
|
|
# strip leading/trailing spaces
|
|
$arg =~ s/^\s*//;
|
|
$arg =~ s/\s*$//;
|
|
$arg =~ s/\s+/ /;
|
|
|
|
if ($arg =~ /^#/) {
|
|
# Treat preprocessor directive as a typeless variable just to fill
|
|
# corresponding data structures "correctly". Catch it later in
|
|
# output_* subs.
|
|
push_parameter($arg, "", "", $file);
|
|
} elsif ($arg =~ m/\(.+\)\s*\(/) {
|
|
# pointer-to-function
|
|
$arg =~ tr/#/,/;
|
|
$arg =~ m/[^\(]+\(\*?\s*([\w\[\]\.]*)\s*\)/;
|
|
$param = $1;
|
|
$type = $arg;
|
|
$type =~ s/([^\(]+\(\*?)\s*$param/$1/;
|
|
save_struct_actual($param);
|
|
push_parameter($param, $type, $arg, $file, $declaration_name);
|
|
} elsif ($arg) {
|
|
$arg =~ s/\s*:\s*/:/g;
|
|
$arg =~ s/\s*\[/\[/g;
|
|
|
|
my @args = split('\s*,\s*', $arg);
|
|
if ($args[0] =~ m/\*/) {
|
|
$args[0] =~ s/(\*+)\s*/ $1/;
|
|
}
|
|
|
|
my @first_arg;
|
|
if ($args[0] =~ /^(.*\s+)(.*?\[.*\].*)$/) {
|
|
shift @args;
|
|
push(@first_arg, split('\s+', $1));
|
|
push(@first_arg, $2);
|
|
} else {
|
|
@first_arg = split('\s+', shift @args);
|
|
}
|
|
|
|
unshift(@args, pop @first_arg);
|
|
$type = join " ", @first_arg;
|
|
|
|
foreach $param (@args) {
|
|
if ($param =~ m/^(\*+)\s*(.*)/) {
|
|
save_struct_actual($2);
|
|
|
|
push_parameter($2, "$type $1", $arg, $file, $declaration_name);
|
|
}
|
|
elsif ($param =~ m/(.*?):(\d+)/) {
|
|
if ($type ne "") { # skip unnamed bit-fields
|
|
save_struct_actual($1);
|
|
push_parameter($1, "$type:$2", $arg, $file, $declaration_name)
|
|
}
|
|
}
|
|
else {
|
|
save_struct_actual($param);
|
|
push_parameter($param, $type, $arg, $file, $declaration_name);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
sub push_parameter($$$$$) {
|
|
my $param = shift;
|
|
my $type = shift;
|
|
my $org_arg = shift;
|
|
my $file = shift;
|
|
my $declaration_name = shift;
|
|
|
|
if (($anon_struct_union == 1) && ($type eq "") &&
|
|
($param eq "}")) {
|
|
return; # ignore the ending }; from anon. struct/union
|
|
}
|
|
|
|
$anon_struct_union = 0;
|
|
$param =~ s/[\[\)].*//;
|
|
|
|
if ($type eq "" && $param =~ /\.\.\.$/)
|
|
{
|
|
if (!$param =~ /\w\.\.\.$/) {
|
|
# handles unnamed variable parameters
|
|
$param = "...";
|
|
}
|
|
elsif ($param =~ /\w\.\.\.$/) {
|
|
# for named variable parameters of the form `x...`, remove the dots
|
|
$param =~ s/\.\.\.$//;
|
|
}
|
|
if (!defined $parameterdescs{$param} || $parameterdescs{$param} eq "") {
|
|
$parameterdescs{$param} = "variable arguments";
|
|
}
|
|
}
|
|
elsif ($type eq "" && ($param eq "" or $param eq "void"))
|
|
{
|
|
$param="void";
|
|
$parameterdescs{void} = "no arguments";
|
|
}
|
|
elsif ($type eq "" && ($param eq "struct" or $param eq "union"))
|
|
# handle unnamed (anonymous) union or struct:
|
|
{
|
|
$type = $param;
|
|
$param = "{unnamed_" . $param . "}";
|
|
$parameterdescs{$param} = "anonymous\n";
|
|
$anon_struct_union = 1;
|
|
}
|
|
|
|
# warn if parameter has no description
|
|
# (but ignore ones starting with # as these are not parameters
|
|
# but inline preprocessor statements);
|
|
# Note: It will also ignore void params and unnamed structs/unions
|
|
if (!defined $parameterdescs{$param} && $param !~ /^#/) {
|
|
$parameterdescs{$param} = $undescribed;
|
|
|
|
if (show_warnings($type, $declaration_name) && $param !~ /\./) {
|
|
emit_warning("${file}:$.", "Function parameter or member '$param' not described in '$declaration_name'\n");
|
|
}
|
|
}
|
|
|
|
# strip spaces from $param so that it is one continuous string
|
|
# on @parameterlist;
|
|
# this fixes a problem where check_sections() cannot find
|
|
# a parameter like "addr[6 + 2]" because it actually appears
|
|
# as "addr[6", "+", "2]" on the parameter list;
|
|
# but it's better to maintain the param string unchanged for output,
|
|
# so just weaken the string compare in check_sections() to ignore
|
|
# "[blah" in a parameter string;
|
|
###$param =~ s/\s*//g;
|
|
push @parameterlist, $param;
|
|
$org_arg =~ s/\s\s+/ /g;
|
|
$parametertypes{$param} = $org_arg;
|
|
}
|
|
|
|
sub check_sections($$$$$) {
|
|
my ($file, $decl_name, $decl_type, $sectcheck, $prmscheck) = @_;
|
|
my @sects = split ' ', $sectcheck;
|
|
my @prms = split ' ', $prmscheck;
|
|
my $err;
|
|
my ($px, $sx);
|
|
my $prm_clean; # strip trailing "[array size]" and/or beginning "*"
|
|
|
|
foreach $sx (0 .. $#sects) {
|
|
$err = 1;
|
|
foreach $px (0 .. $#prms) {
|
|
$prm_clean = $prms[$px];
|
|
$prm_clean =~ s/\[.*\]//;
|
|
$prm_clean =~ s/$attribute//i;
|
|
# ignore array size in a parameter string;
|
|
# however, the original param string may contain
|
|
# spaces, e.g.: addr[6 + 2]
|
|
# and this appears in @prms as "addr[6" since the
|
|
# parameter list is split at spaces;
|
|
# hence just ignore "[..." for the sections check;
|
|
$prm_clean =~ s/\[.*//;
|
|
|
|
##$prm_clean =~ s/^\**//;
|
|
if ($prm_clean eq $sects[$sx]) {
|
|
$err = 0;
|
|
last;
|
|
}
|
|
}
|
|
if ($err) {
|
|
if ($decl_type eq "function") {
|
|
emit_warning("${file}:$.",
|
|
"Excess function parameter " .
|
|
"'$sects[$sx]' " .
|
|
"description in '$decl_name'\n");
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
##
|
|
# Checks the section describing the return value of a function.
|
|
sub check_return_section {
|
|
my $file = shift;
|
|
my $declaration_name = shift;
|
|
my $return_type = shift;
|
|
|
|
# Ignore an empty return type (It's a macro)
|
|
# Ignore functions with a "void" return type. (But don't ignore "void *")
|
|
if (($return_type eq "") || ($return_type =~ /void\s*\w*\s*$/)) {
|
|
return;
|
|
}
|
|
|
|
if (!defined($sections{$section_return}) ||
|
|
$sections{$section_return} eq "") {
|
|
emit_warning("${file}:$.",
|
|
"No description found for return value of " .
|
|
"'$declaration_name'\n");
|
|
}
|
|
}
|
|
|
|
##
|
|
# takes a function prototype and the name of the current file being
|
|
# processed and spits out all the details stored in the global
|
|
# arrays/hashes.
|
|
sub dump_function($$) {
|
|
my $prototype = shift;
|
|
my $file = shift;
|
|
my $noret = 0;
|
|
|
|
print_lineno($new_start_line);
|
|
|
|
$prototype =~ s/^static +//;
|
|
$prototype =~ s/^extern +//;
|
|
$prototype =~ s/^asmlinkage +//;
|
|
$prototype =~ s/^inline +//;
|
|
$prototype =~ s/^__inline__ +//;
|
|
$prototype =~ s/^__inline +//;
|
|
$prototype =~ s/^__always_inline +//;
|
|
$prototype =~ s/^noinline +//;
|
|
$prototype =~ s/__init +//;
|
|
$prototype =~ s/__init_or_module +//;
|
|
$prototype =~ s/__deprecated +//;
|
|
$prototype =~ s/__flatten +//;
|
|
$prototype =~ s/__meminit +//;
|
|
$prototype =~ s/__must_check +//;
|
|
$prototype =~ s/__weak +//;
|
|
$prototype =~ s/__sched +//;
|
|
$prototype =~ s/__printf\s*\(\s*\d*\s*,\s*\d*\s*\) +//;
|
|
$prototype =~ s/__alloc_size\s*\(\s*\d+\s*(?:,\s*\d+\s*)?\) +//;
|
|
my $define = $prototype =~ s/^#\s*define\s+//; #ak added
|
|
$prototype =~ s/__attribute_const__ +//;
|
|
$prototype =~ s/__attribute__\s*\(\(
|
|
(?:
|
|
[\w\s]++ # attribute name
|
|
(?:\([^)]*+\))? # attribute arguments
|
|
\s*+,? # optional comma at the end
|
|
)+
|
|
\)\)\s+//x;
|
|
|
|
# Yes, this truly is vile. We are looking for:
|
|
# 1. Return type (may be nothing if we're looking at a macro)
|
|
# 2. Function name
|
|
# 3. Function parameters.
|
|
#
|
|
# All the while we have to watch out for function pointer parameters
|
|
# (which IIRC is what the two sections are for), C types (these
|
|
# regexps don't even start to express all the possibilities), and
|
|
# so on.
|
|
#
|
|
# If you mess with these regexps, it's a good idea to check that
|
|
# the following functions' documentation still comes out right:
|
|
# - parport_register_device (function pointer parameters)
|
|
# - atomic_set (macro)
|
|
# - pci_match_device, __copy_to_user (long return type)
|
|
my $name = qr{[a-zA-Z0-9_~:]+};
|
|
my $prototype_end1 = qr{[^\(]*};
|
|
my $prototype_end2 = qr{[^\{]*};
|
|
my $prototype_end = qr{\(($prototype_end1|$prototype_end2)\)};
|
|
my $type1 = qr{[\w\s]+};
|
|
my $type2 = qr{$type1\*+};
|
|
|
|
if ($define && $prototype =~ m/^()($name)\s+/) {
|
|
# This is an object-like macro, it has no return type and no parameter
|
|
# list.
|
|
# Function-like macros are not allowed to have spaces between
|
|
# declaration_name and opening parenthesis (notice the \s+).
|
|
$return_type = $1;
|
|
$declaration_name = $2;
|
|
$noret = 1;
|
|
} elsif ($prototype =~ m/^()($name)\s*$prototype_end/ ||
|
|
$prototype =~ m/^($type1)\s+($name)\s*$prototype_end/ ||
|
|
$prototype =~ m/^($type2+)\s*($name)\s*$prototype_end/) {
|
|
$return_type = $1;
|
|
$declaration_name = $2;
|
|
my $args = $3;
|
|
|
|
create_parameterlist($args, ',', $file, $declaration_name);
|
|
} else {
|
|
emit_warning("${file}:$.", "cannot understand function prototype: '$prototype'\n");
|
|
return;
|
|
}
|
|
|
|
if ($identifier ne $declaration_name) {
|
|
emit_warning("${file}:$.", "expecting prototype for $identifier(). Prototype was for $declaration_name() instead\n");
|
|
return;
|
|
}
|
|
|
|
my $prms = join " ", @parameterlist;
|
|
check_sections($file, $declaration_name, "function", $sectcheck, $prms);
|
|
|
|
# This check emits a lot of warnings at the moment, because many
|
|
# functions don't have a 'Return' doc section. So until the number
|
|
# of warnings goes sufficiently down, the check is only performed in
|
|
# verbose mode.
|
|
# TODO: always perform the check.
|
|
if ($verbose && !$noret) {
|
|
check_return_section($file, $declaration_name, $return_type);
|
|
}
|
|
|
|
# The function parser can be called with a typedef parameter.
|
|
# Handle it.
|
|
if ($return_type =~ /typedef/) {
|
|
output_declaration($declaration_name,
|
|
'function',
|
|
{'function' => $declaration_name,
|
|
'typedef' => 1,
|
|
'module' => $modulename,
|
|
'functiontype' => $return_type,
|
|
'parameterlist' => \@parameterlist,
|
|
'parameterdescs' => \%parameterdescs,
|
|
'parametertypes' => \%parametertypes,
|
|
'sectionlist' => \@sectionlist,
|
|
'sections' => \%sections,
|
|
'purpose' => $declaration_purpose
|
|
});
|
|
} else {
|
|
output_declaration($declaration_name,
|
|
'function',
|
|
{'function' => $declaration_name,
|
|
'module' => $modulename,
|
|
'functiontype' => $return_type,
|
|
'parameterlist' => \@parameterlist,
|
|
'parameterdescs' => \%parameterdescs,
|
|
'parametertypes' => \%parametertypes,
|
|
'sectionlist' => \@sectionlist,
|
|
'sections' => \%sections,
|
|
'purpose' => $declaration_purpose
|
|
});
|
|
}
|
|
}
|
|
|
|
sub reset_state {
|
|
$function = "";
|
|
%parameterdescs = ();
|
|
%parametertypes = ();
|
|
@parameterlist = ();
|
|
%sections = ();
|
|
@sectionlist = ();
|
|
$sectcheck = "";
|
|
$struct_actual = "";
|
|
$prototype = "";
|
|
|
|
$state = STATE_NORMAL;
|
|
$inline_doc_state = STATE_INLINE_NA;
|
|
}
|
|
|
|
sub tracepoint_munge($) {
|
|
my $file = shift;
|
|
my $tracepointname = 0;
|
|
my $tracepointargs = 0;
|
|
|
|
if ($prototype =~ m/TRACE_EVENT\((.*?),/) {
|
|
$tracepointname = $1;
|
|
}
|
|
if ($prototype =~ m/DEFINE_SINGLE_EVENT\((.*?),/) {
|
|
$tracepointname = $1;
|
|
}
|
|
if ($prototype =~ m/DEFINE_EVENT\((.*?),(.*?),/) {
|
|
$tracepointname = $2;
|
|
}
|
|
$tracepointname =~ s/^\s+//; #strip leading whitespace
|
|
if ($prototype =~ m/TP_PROTO\((.*?)\)/) {
|
|
$tracepointargs = $1;
|
|
}
|
|
if (($tracepointname eq 0) || ($tracepointargs eq 0)) {
|
|
emit_warning("${file}:$.", "Unrecognized tracepoint format: \n".
|
|
"$prototype\n");
|
|
} else {
|
|
$prototype = "static inline void trace_$tracepointname($tracepointargs)";
|
|
$identifier = "trace_$identifier";
|
|
}
|
|
}
|
|
|
|
sub syscall_munge() {
|
|
my $void = 0;
|
|
|
|
$prototype =~ s@[\r\n]+@ @gos; # strip newlines/CR's
|
|
## if ($prototype =~ m/SYSCALL_DEFINE0\s*\(\s*(a-zA-Z0-9_)*\s*\)/) {
|
|
if ($prototype =~ m/SYSCALL_DEFINE0/) {
|
|
$void = 1;
|
|
## $prototype = "long sys_$1(void)";
|
|
}
|
|
|
|
$prototype =~ s/SYSCALL_DEFINE.*\(/long sys_/; # fix return type & func name
|
|
if ($prototype =~ m/long (sys_.*?),/) {
|
|
$prototype =~ s/,/\(/;
|
|
} elsif ($void) {
|
|
$prototype =~ s/\)/\(void\)/;
|
|
}
|
|
|
|
# now delete all of the odd-number commas in $prototype
|
|
# so that arg types & arg names don't have a comma between them
|
|
my $count = 0;
|
|
my $len = length($prototype);
|
|
if ($void) {
|
|
$len = 0; # skip the for-loop
|
|
}
|
|
for (my $ix = 0; $ix < $len; $ix++) {
|
|
if (substr($prototype, $ix, 1) eq ',') {
|
|
$count++;
|
|
if ($count % 2 == 1) {
|
|
substr($prototype, $ix, 1) = ' ';
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
sub process_proto_function($$) {
|
|
my $x = shift;
|
|
my $file = shift;
|
|
|
|
$x =~ s@\/\/.*$@@gos; # strip C99-style comments to end of line
|
|
|
|
if ($x =~ m#\s*/\*\s+MACDOC\s*#io || ($x =~ /^#/ && $x !~ /^#\s*define/)) {
|
|
# do nothing
|
|
}
|
|
elsif ($x =~ /([^\{]*)/) {
|
|
$prototype .= $1;
|
|
}
|
|
|
|
if (($x =~ /\{/) || ($x =~ /\#\s*define/) || ($x =~ /;/)) {
|
|
$prototype =~ s@/\*.*?\*/@@gos; # strip comments.
|
|
$prototype =~ s@[\r\n]+@ @gos; # strip newlines/cr's.
|
|
$prototype =~ s@^\s+@@gos; # strip leading spaces
|
|
|
|
# Handle prototypes for function pointers like:
|
|
# int (*pcs_config)(struct foo)
|
|
$prototype =~ s@^(\S+\s+)\(\s*\*(\S+)\)@$1$2@gos;
|
|
|
|
if ($prototype =~ /SYSCALL_DEFINE/) {
|
|
syscall_munge();
|
|
}
|
|
if ($prototype =~ /TRACE_EVENT/ || $prototype =~ /DEFINE_EVENT/ ||
|
|
$prototype =~ /DEFINE_SINGLE_EVENT/)
|
|
{
|
|
tracepoint_munge($file);
|
|
}
|
|
dump_function($prototype, $file);
|
|
reset_state();
|
|
}
|
|
}
|
|
|
|
sub process_proto_type($$) {
|
|
my $x = shift;
|
|
my $file = shift;
|
|
|
|
$x =~ s@[\r\n]+@ @gos; # strip newlines/cr's.
|
|
$x =~ s@^\s+@@gos; # strip leading spaces
|
|
$x =~ s@\s+$@@gos; # strip trailing spaces
|
|
$x =~ s@\/\/.*$@@gos; # strip C99-style comments to end of line
|
|
|
|
if ($x =~ /^#/) {
|
|
# To distinguish preprocessor directive from regular declaration later.
|
|
$x .= ";";
|
|
}
|
|
|
|
while (1) {
|
|
if ( $x =~ /([^\{\};]*)([\{\};])(.*)/ ) {
|
|
if( length $prototype ) {
|
|
$prototype .= " "
|
|
}
|
|
$prototype .= $1 . $2;
|
|
($2 eq '{') && $brcount++;
|
|
($2 eq '}') && $brcount--;
|
|
if (($2 eq ';') && ($brcount == 0)) {
|
|
dump_declaration($prototype, $file);
|
|
reset_state();
|
|
last;
|
|
}
|
|
$x = $3;
|
|
} else {
|
|
$prototype .= $x;
|
|
last;
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
sub map_filename($) {
|
|
my $file;
|
|
my ($orig_file) = @_;
|
|
|
|
if (defined($ENV{'SRCTREE'})) {
|
|
$file = "$ENV{'SRCTREE'}" . "/" . $orig_file;
|
|
} else {
|
|
$file = $orig_file;
|
|
}
|
|
|
|
if (defined($source_map{$file})) {
|
|
$file = $source_map{$file};
|
|
}
|
|
|
|
return $file;
|
|
}
|
|
|
|
sub process_export_file($) {
|
|
my ($orig_file) = @_;
|
|
my $file = map_filename($orig_file);
|
|
|
|
if (!open(IN,"<$file")) {
|
|
print STDERR "Error: Cannot open file $file\n";
|
|
++$errors;
|
|
return;
|
|
}
|
|
|
|
while (<IN>) {
|
|
if (/$export_symbol/) {
|
|
next if (defined($nosymbol_table{$2}));
|
|
$function_table{$2} = 1;
|
|
}
|
|
}
|
|
|
|
close(IN);
|
|
}
|
|
|
|
#
|
|
# Parsers for the various processing states.
|
|
#
|
|
# STATE_NORMAL: looking for the /** to begin everything.
|
|
#
|
|
sub process_normal() {
|
|
if (/$doc_start/o) {
|
|
$state = STATE_NAME; # next line is always the function name
|
|
$in_doc_sect = 0;
|
|
$declaration_start_line = $. + 1;
|
|
}
|
|
}
|
|
|
|
#
|
|
# STATE_NAME: Looking for the "name - description" line
|
|
#
|
|
sub process_name($$) {
|
|
my $file = shift;
|
|
my $descr;
|
|
|
|
if (/$doc_block/o) {
|
|
$state = STATE_DOCBLOCK;
|
|
$contents = "";
|
|
$new_start_line = $.;
|
|
|
|
if ( $1 eq "" ) {
|
|
$section = $section_intro;
|
|
} else {
|
|
$section = $1;
|
|
}
|
|
} elsif (/$doc_decl/o) {
|
|
$identifier = $1;
|
|
my $is_kernel_comment = 0;
|
|
my $decl_start = qr{$doc_com};
|
|
# test for pointer declaration type, foo * bar() - desc
|
|
my $fn_type = qr{\w+\s*\*\s*};
|
|
my $parenthesis = qr{\(\w*\)};
|
|
my $decl_end = qr{[-:].*};
|
|
if (/^$decl_start([\w\s]+?)$parenthesis?\s*$decl_end?$/) {
|
|
$identifier = $1;
|
|
}
|
|
if ($identifier =~ m/^(struct|union|enum|typedef)\b\s*(\S*)/) {
|
|
$decl_type = $1;
|
|
$identifier = $2;
|
|
$is_kernel_comment = 1;
|
|
}
|
|
# Look for foo() or static void foo() - description; or misspelt
|
|
# identifier
|
|
elsif (/^$decl_start$fn_type?(\w+)\s*$parenthesis?\s*$decl_end?$/ ||
|
|
/^$decl_start$fn_type?(\w+.*)$parenthesis?\s*$decl_end$/) {
|
|
$identifier = $1;
|
|
$decl_type = 'function';
|
|
$identifier =~ s/^define\s+//;
|
|
$is_kernel_comment = 1;
|
|
}
|
|
$identifier =~ s/\s+$//;
|
|
|
|
$state = STATE_BODY;
|
|
# if there's no @param blocks need to set up default section
|
|
# here
|
|
$contents = "";
|
|
$section = $section_default;
|
|
$new_start_line = $. + 1;
|
|
if (/[-:](.*)/) {
|
|
# strip leading/trailing/multiple spaces
|
|
$descr= $1;
|
|
$descr =~ s/^\s*//;
|
|
$descr =~ s/\s*$//;
|
|
$descr =~ s/\s+/ /g;
|
|
$declaration_purpose = $descr;
|
|
$state = STATE_BODY_MAYBE;
|
|
} else {
|
|
$declaration_purpose = "";
|
|
}
|
|
|
|
if (!$is_kernel_comment) {
|
|
emit_warning("${file}:$.", "This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst\n$_");
|
|
$state = STATE_NORMAL;
|
|
}
|
|
|
|
if (($declaration_purpose eq "") && $verbose) {
|
|
emit_warning("${file}:$.", "missing initial short description on line:\n$_");
|
|
}
|
|
|
|
if ($identifier eq "" && $decl_type ne "enum") {
|
|
emit_warning("${file}:$.", "wrong kernel-doc identifier on line:\n$_");
|
|
$state = STATE_NORMAL;
|
|
}
|
|
|
|
if ($verbose) {
|
|
print STDERR "${file}:$.: info: Scanning doc for $decl_type $identifier\n";
|
|
}
|
|
} else {
|
|
emit_warning("${file}:$.", "Cannot understand $_ on line $. - I thought it was a doc line\n");
|
|
$state = STATE_NORMAL;
|
|
}
|
|
}
|
|
|
|
|
|
#
|
|
# STATE_BODY and STATE_BODY_MAYBE: the bulk of a kerneldoc comment.
|
|
#
|
|
sub process_body($$) {
|
|
my $file = shift;
|
|
|
|
# Until all named variable macro parameters are
|
|
# documented using the bare name (`x`) rather than with
|
|
# dots (`x...`), strip the dots:
|
|
if ($section =~ /\w\.\.\.$/) {
|
|
$section =~ s/\.\.\.$//;
|
|
|
|
if ($verbose) {
|
|
emit_warning("${file}:$.", "Variable macro arguments should be documented without dots\n");
|
|
}
|
|
}
|
|
|
|
if ($state == STATE_BODY_WITH_BLANK_LINE && /^\s*\*\s?\S/) {
|
|
dump_section($file, $section, $contents);
|
|
$section = $section_default;
|
|
$new_start_line = $.;
|
|
$contents = "";
|
|
}
|
|
|
|
if (/$doc_sect/i) { # case insensitive for supported section names
|
|
$newsection = $1;
|
|
$newcontents = $2;
|
|
|
|
# map the supported section names to the canonical names
|
|
if ($newsection =~ m/^description$/i) {
|
|
$newsection = $section_default;
|
|
} elsif ($newsection =~ m/^context$/i) {
|
|
$newsection = $section_context;
|
|
} elsif ($newsection =~ m/^returns?$/i) {
|
|
$newsection = $section_return;
|
|
} elsif ($newsection =~ m/^\@return$/) {
|
|
# special: @return is a section, not a param description
|
|
$newsection = $section_return;
|
|
}
|
|
|
|
if (($contents ne "") && ($contents ne "\n")) {
|
|
if (!$in_doc_sect && $verbose) {
|
|
emit_warning("${file}:$.", "contents before sections\n");
|
|
}
|
|
dump_section($file, $section, $contents);
|
|
$section = $section_default;
|
|
}
|
|
|
|
$in_doc_sect = 1;
|
|
$state = STATE_BODY;
|
|
$contents = $newcontents;
|
|
$new_start_line = $.;
|
|
while (substr($contents, 0, 1) eq " ") {
|
|
$contents = substr($contents, 1);
|
|
}
|
|
if ($contents ne "") {
|
|
$contents .= "\n";
|
|
}
|
|
$section = $newsection;
|
|
$leading_space = undef;
|
|
} elsif (/$doc_end/) {
|
|
if (($contents ne "") && ($contents ne "\n")) {
|
|
dump_section($file, $section, $contents);
|
|
$section = $section_default;
|
|
$contents = "";
|
|
}
|
|
# look for doc_com + <text> + doc_end:
|
|
if ($_ =~ m'\s*\*\s*[a-zA-Z_0-9:\.]+\*/') {
|
|
emit_warning("${file}:$.", "suspicious ending line: $_");
|
|
}
|
|
|
|
$prototype = "";
|
|
$state = STATE_PROTO;
|
|
$brcount = 0;
|
|
$new_start_line = $. + 1;
|
|
} elsif (/$doc_content/) {
|
|
if ($1 eq "") {
|
|
if ($section eq $section_context) {
|
|
dump_section($file, $section, $contents);
|
|
$section = $section_default;
|
|
$contents = "";
|
|
$new_start_line = $.;
|
|
$state = STATE_BODY;
|
|
} else {
|
|
if ($section ne $section_default) {
|
|
$state = STATE_BODY_WITH_BLANK_LINE;
|
|
} else {
|
|
$state = STATE_BODY;
|
|
}
|
|
$contents .= "\n";
|
|
}
|
|
} elsif ($state == STATE_BODY_MAYBE) {
|
|
# Continued declaration purpose
|
|
chomp($declaration_purpose);
|
|
$declaration_purpose .= " " . $1;
|
|
$declaration_purpose =~ s/\s+/ /g;
|
|
} else {
|
|
my $cont = $1;
|
|
if ($section =~ m/^@/ || $section eq $section_context) {
|
|
if (!defined $leading_space) {
|
|
if ($cont =~ m/^(\s+)/) {
|
|
$leading_space = $1;
|
|
} else {
|
|
$leading_space = "";
|
|
}
|
|
}
|
|
$cont =~ s/^$leading_space//;
|
|
}
|
|
$contents .= $cont . "\n";
|
|
}
|
|
} else {
|
|
# i dont know - bad line? ignore.
|
|
emit_warning("${file}:$.", "bad line: $_");
|
|
}
|
|
}
|
|
|
|
|
|
#
|
|
# STATE_PROTO: reading a function/whatever prototype.
|
|
#
|
|
sub process_proto($$) {
|
|
my $file = shift;
|
|
|
|
if (/$doc_inline_oneline/) {
|
|
$section = $1;
|
|
$contents = $2;
|
|
if ($contents ne "") {
|
|
$contents .= "\n";
|
|
dump_section($file, $section, $contents);
|
|
$section = $section_default;
|
|
$contents = "";
|
|
}
|
|
} elsif (/$doc_inline_start/) {
|
|
$state = STATE_INLINE;
|
|
$inline_doc_state = STATE_INLINE_NAME;
|
|
} elsif ($decl_type eq 'function') {
|
|
process_proto_function($_, $file);
|
|
} else {
|
|
process_proto_type($_, $file);
|
|
}
|
|
}
|
|
|
|
#
|
|
# STATE_DOCBLOCK: within a DOC: block.
|
|
#
|
|
sub process_docblock($$) {
|
|
my $file = shift;
|
|
|
|
if (/$doc_end/) {
|
|
dump_doc_section($file, $section, $contents);
|
|
$section = $section_default;
|
|
$contents = "";
|
|
$function = "";
|
|
%parameterdescs = ();
|
|
%parametertypes = ();
|
|
@parameterlist = ();
|
|
%sections = ();
|
|
@sectionlist = ();
|
|
$prototype = "";
|
|
$state = STATE_NORMAL;
|
|
} elsif (/$doc_content/) {
|
|
if ( $1 eq "" ) {
|
|
$contents .= $blankline;
|
|
} else {
|
|
$contents .= $1 . "\n";
|
|
}
|
|
}
|
|
}
|
|
|
|
#
|
|
# STATE_INLINE: docbook comments within a prototype.
|
|
#
|
|
sub process_inline($$) {
|
|
my $file = shift;
|
|
|
|
# First line (state 1) needs to be a @parameter
|
|
if ($inline_doc_state == STATE_INLINE_NAME && /$doc_inline_sect/o) {
|
|
$section = $1;
|
|
$contents = $2;
|
|
$new_start_line = $.;
|
|
if ($contents ne "") {
|
|
while (substr($contents, 0, 1) eq " ") {
|
|
$contents = substr($contents, 1);
|
|
}
|
|
$contents .= "\n";
|
|
}
|
|
$inline_doc_state = STATE_INLINE_TEXT;
|
|
# Documentation block end */
|
|
} elsif (/$doc_inline_end/) {
|
|
if (($contents ne "") && ($contents ne "\n")) {
|
|
dump_section($file, $section, $contents);
|
|
$section = $section_default;
|
|
$contents = "";
|
|
}
|
|
$state = STATE_PROTO;
|
|
$inline_doc_state = STATE_INLINE_NA;
|
|
# Regular text
|
|
} elsif (/$doc_content/) {
|
|
if ($inline_doc_state == STATE_INLINE_TEXT) {
|
|
$contents .= $1 . "\n";
|
|
# nuke leading blank lines
|
|
if ($contents =~ /^\s*$/) {
|
|
$contents = "";
|
|
}
|
|
} elsif ($inline_doc_state == STATE_INLINE_NAME) {
|
|
$inline_doc_state = STATE_INLINE_ERROR;
|
|
emit_warning("${file}:$.", "Incorrect use of kernel-doc format: $_");
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
sub process_file($) {
|
|
my $file;
|
|
my $initial_section_counter = $section_counter;
|
|
my ($orig_file) = @_;
|
|
|
|
$file = map_filename($orig_file);
|
|
|
|
if (!open(IN_FILE,"<$file")) {
|
|
print STDERR "Error: Cannot open file $file\n";
|
|
++$errors;
|
|
return;
|
|
}
|
|
|
|
$. = 1;
|
|
|
|
$section_counter = 0;
|
|
while (<IN_FILE>) {
|
|
while (s/\\\s*$//) {
|
|
$_ .= <IN_FILE>;
|
|
}
|
|
# Replace tabs by spaces
|
|
while ($_ =~ s/\t+/' ' x (length($&) * 8 - length($`) % 8)/e) {};
|
|
# Hand this line to the appropriate state handler
|
|
if ($state == STATE_NORMAL) {
|
|
process_normal();
|
|
} elsif ($state == STATE_NAME) {
|
|
process_name($file, $_);
|
|
} elsif ($state == STATE_BODY || $state == STATE_BODY_MAYBE ||
|
|
$state == STATE_BODY_WITH_BLANK_LINE) {
|
|
process_body($file, $_);
|
|
} elsif ($state == STATE_INLINE) { # scanning for inline parameters
|
|
process_inline($file, $_);
|
|
} elsif ($state == STATE_PROTO) {
|
|
process_proto($file, $_);
|
|
} elsif ($state == STATE_DOCBLOCK) {
|
|
process_docblock($file, $_);
|
|
}
|
|
}
|
|
|
|
# Make sure we got something interesting.
|
|
if ($initial_section_counter == $section_counter && $
|
|
output_mode ne "none") {
|
|
if ($output_selection == OUTPUT_INCLUDE) {
|
|
emit_warning("${file}:1", "'$_' not found\n")
|
|
for keys %function_table;
|
|
}
|
|
else {
|
|
emit_warning("${file}:1", "no structured comments found\n");
|
|
}
|
|
}
|
|
close IN_FILE;
|
|
}
|
|
|
|
|
|
if ($output_mode eq "rst") {
|
|
get_sphinx_version() if (!$sphinx_major);
|
|
}
|
|
|
|
$kernelversion = get_kernel_version();
|
|
|
|
# generate a sequence of code that will splice in highlighting information
|
|
# using the s// operator.
|
|
for (my $k = 0; $k < @highlights; $k++) {
|
|
my $pattern = $highlights[$k][0];
|
|
my $result = $highlights[$k][1];
|
|
# print STDERR "scanning pattern:$pattern, highlight:($result)\n";
|
|
$dohighlight .= "\$contents =~ s:$pattern:$result:gs;\n";
|
|
}
|
|
|
|
# Read the file that maps relative names to absolute names for
|
|
# separate source and object directories and for shadow trees.
|
|
if (open(SOURCE_MAP, "<.tmp_filelist.txt")) {
|
|
my ($relname, $absname);
|
|
while(<SOURCE_MAP>) {
|
|
chop();
|
|
($relname, $absname) = (split())[0..1];
|
|
$relname =~ s:^/+::;
|
|
$source_map{$relname} = $absname;
|
|
}
|
|
close(SOURCE_MAP);
|
|
}
|
|
|
|
if ($output_selection == OUTPUT_EXPORTED ||
|
|
$output_selection == OUTPUT_INTERNAL) {
|
|
|
|
push(@export_file_list, @ARGV);
|
|
|
|
foreach (@export_file_list) {
|
|
chomp;
|
|
process_export_file($_);
|
|
}
|
|
}
|
|
|
|
foreach (@ARGV) {
|
|
chomp;
|
|
process_file($_);
|
|
}
|
|
if ($verbose && $errors) {
|
|
print STDERR "$errors errors\n";
|
|
}
|
|
if ($verbose && $warnings) {
|
|
print STDERR "$warnings warnings\n";
|
|
}
|
|
|
|
if ($Werror && $warnings) {
|
|
print STDERR "$warnings warnings as Errors\n";
|
|
exit($warnings);
|
|
} else {
|
|
exit($output_mode eq "none" ? 0 : $errors)
|
|
}
|
|
|
|
__END__
|
|
|
|
=head1 OPTIONS
|
|
|
|
=head2 Output format selection (mutually exclusive):
|
|
|
|
=over 8
|
|
|
|
=item -man
|
|
|
|
Output troff manual page format.
|
|
|
|
=item -rst
|
|
|
|
Output reStructuredText format. This is the default.
|
|
|
|
=item -none
|
|
|
|
Do not output documentation, only warnings.
|
|
|
|
=back
|
|
|
|
=head2 Output format modifiers
|
|
|
|
=head3 reStructuredText only
|
|
|
|
=over 8
|
|
|
|
=item -sphinx-version VERSION
|
|
|
|
Use the ReST C domain dialect compatible with a specific Sphinx Version.
|
|
|
|
If not specified, kernel-doc will auto-detect using the sphinx-build version
|
|
found on PATH.
|
|
|
|
=back
|
|
|
|
=head2 Output selection (mutually exclusive):
|
|
|
|
=over 8
|
|
|
|
=item -export
|
|
|
|
Only output documentation for the symbols that have been exported using
|
|
EXPORT_SYMBOL() or EXPORT_SYMBOL_GPL() in any input FILE or -export-file FILE.
|
|
|
|
=item -internal
|
|
|
|
Only output documentation for the symbols that have NOT been exported using
|
|
EXPORT_SYMBOL() or EXPORT_SYMBOL_GPL() in any input FILE or -export-file FILE.
|
|
|
|
=item -function NAME
|
|
|
|
Only output documentation for the given function or DOC: section title.
|
|
All other functions and DOC: sections are ignored.
|
|
|
|
May be specified multiple times.
|
|
|
|
=item -nosymbol NAME
|
|
|
|
Exclude the specified symbol from the output documentation.
|
|
|
|
May be specified multiple times.
|
|
|
|
=back
|
|
|
|
=head2 Output selection modifiers:
|
|
|
|
=over 8
|
|
|
|
=item -no-doc-sections
|
|
|
|
Do not output DOC: sections.
|
|
|
|
=item -export-file FILE
|
|
|
|
Specify an additional FILE in which to look for EXPORT_SYMBOL() and
|
|
EXPORT_SYMBOL_GPL().
|
|
|
|
To be used with -export or -internal.
|
|
|
|
May be specified multiple times.
|
|
|
|
=back
|
|
|
|
=head3 reStructuredText only
|
|
|
|
=over 8
|
|
|
|
=item -enable-lineno
|
|
|
|
Enable output of .. LINENO lines.
|
|
|
|
=back
|
|
|
|
=head2 Other parameters:
|
|
|
|
=over 8
|
|
|
|
=item -h, -help
|
|
|
|
Print this help.
|
|
|
|
=item -v
|
|
|
|
Verbose output, more warnings and other information.
|
|
|
|
=item -Werror
|
|
|
|
Treat warnings as errors.
|
|
|
|
=back
|
|
|
|
=cut
|